Improvement in grain-separators



0. K. woon.

GRAIN-SEPARATOR.

Patented March 7, 1876.

fizveiz rx 'NITED JISTATES PATENT OFFICE.

' o vI'L E K. WOOD, or WEST OHAZ'Y, new YORK.

IMPROVEMENT IN GRAlN-SEPARATORS.

' Specification forming part of Le'ttersPatent No. 174,606, dated. March'7, 1876; application filed I I Q September 22 1875.

7 and State of New York, have invented new and useful Improvements inGrain-Separators,

' and that the following is a full and exact description of the same. j

My invention is an improvementv of the grain-separator for which LettersPatent were granted to me, and which is numbered 160,561, and datedMarch 9, .1875. I

My invention consists in a combination of parts for changing the motionof the shoe at will from a smoothly-swinging lateral motion of theentire shoe to a laterally-reciprocating, combined with a verticallytremulous, motion of the entire shoe, or the reverse; and it furtherconsists in a combination of parts for changing at will the motion ofthe shoe from a freely-swinging lateral motion of the entire shoe toalateral swinging motion at one end of the shoe, and a union of alaterally-reciprocating and a vertically-tremulous motion at the otherend of the shoe, or the reverse, or from the above-stated union ofmotions to a laterally-reciprocating and a vertically-tremulous motionof the entire shoe. And it further consists in means for adjusting theparts whereby the vertically-treinulous motion is imparted to one orboth ends of the shoe.

1n the drawings, Figure l is a vertical lougitu'dinal section of theimproved grain-separator. Fig. 2 is an end elevation thereof. Fig. 3 isa detailed view; and Fig. 4 represents one of the suspenders D, andshows the keyhole slot therein.

A is the shoe, detachably supported by suspenders D, and is swunglaterally by the usual bell-crank and rod connection to the fan-shaft. Gare corrugated plates fastened to the bottom of the shoe, or it may beto the bottom of a screen beneath the shoe.- B are corrugated rollers,set in supports K, which rest without fastening on the top of bars F.These roller-supports Kride up and down in mortises L in the uprights H.The bars F are adjustable to carry the roller-supports K and rollers Bto and from engagement with the plates 0 or the shoe A. Their adjustmentis shown as vertical, but may be directed laterally out of a verticalline through the plate 0.

Ihave' shown the bars F passing: loosely through vertical slots I in theuprights H of the. main frame of the separator. The slots are longerthan the'width of the bars F. Each bar has a diagonal slot, G, throughit, near each of its ends, and pins J journaled in the uprightspassseverally through theseveral slots in the bars F. v v

E Visa blank board, formed in two sections. The section toward thevfront of the -separator is adjustable horizontallyto lengthen orshortenthe blank board,and thus cause the grain and the air-blast to beconcentrated on a small area near the front of the separator, and tocause the grain to traverse a larger surface on the inferior screen.

The operation of my invention is as follows: Whenever I desire toproduce a smooth swingin g motion, the bars F are drawn toward the frontof the separator, whereupon theslots G, riding the pins J, lower thebars F, and at the same time withdraw the roller-supports K and rollersB from contact with the corrugated plates 0. The power being applied tothe separator, the shoe swings smoothly and laterally. Whenever it isdesired to vary the motion of the screen, the bars F are pushedbackward, and are elevated by the pins J riding in the slots G, and liftwith them the roller-supports K, and the rollers B engage with thecorrugated plates Q. The suspenders D at both ends of the shoe are thendetached from the shoe or main frame.

I may detach but one end of the shoe, and permit that end to rest on thecorrugated r011 ers beneath it, while the other end of the shoe remainssuspended and capable of swinging laterally. I thus'obtain alaterally-swinging motion at the suspended end of the shoe, togetherwith a lateral and vertically-tremulous motion at the lowered end of theshoe.

It will be seen that when I lower the rear end of the shoe, the frontend remaining in suspension, I bring the shoe nearer toa horizontalposition; but when I lower the front end of the shoe, the rear end beingsuspended, I remove the shoe farther from a horizontal position. Thus bylowering either end I adjust the slope of the shoe and accelerate orretard, as the case may be, the progress of the grain and chaff alongthe shoe. From this position the shoe may be changed either to thefreely-swinging position, or to its position on the rollers.

Power is applied and the shoe is moved both with a lateral and avertically-vibrating motion.

It is sometimes desirable for-the separation of some sorts of seeds andgrains that the blast and grain be concentrated, and that, at

p the same time, the roughest motions be usedrugated, or with corrugatedplates used with rollers having smooth perimeters.

What I claim is I r 1. The, combination of a shoe havingdetachableswinging suspenders at each end with vertically-movable andcorrugated rollers under each end thereof, as and for the purpose setforth.

2. The combination of a freely-swinging shoe suspended at one end anddetachably suspended-at the other end, a vertically-movable andcorrugated roller S beneath the detachable end of the shoe, as and forthe purpose set forth.

3. The combination of a swinging shoe, A, detachable suspenders D ateach end thereof, corrugated plates 0, and adj ustable corrugatedrollers B B under each end of the shoe, as and for the purposedescribed.

4. The combination of swinging shoe A, detachable suspenders D at eitherend thereof, corrugated plate 0, and rollers B B beneath the end of theshoe, having the detachable suspenders, as and for the purpose setforth.

.5. The combination of the diagonally-slotted bars F, roller-supports K,slotted uprights H, 4

and pins, substantially as and for the purpose described. I ORVILLE K.WOOD.

Witnesses: v

E. B. STOCKING, JOHN B. BORDEN.

